Volume 15, Issue 10 (1-2016)
Modares Mechanical Engineering 2016, 15(10): 291-301 |
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Heydari M, Khalili K. Modeling Enhancement and Simulation of Distortion in Drying Process. Modares Mechanical Engineering 2016; 15 (10) :291-301
URL: http://mme.modares.ac.ir/article-15-2405-en.html
URL: http://mme.modares.ac.ir/article-15-2405-en.html
Abstract: (13733 Views)
Drying of porous materials is a critical step in the production of many products such as ceramics, brick and tile. Quality of dried product is severity influenced by drying processes. The aim of the present work is modeling of convection drying of a ceramic by using diffusion model. Material properties changes such as Young's modulus and shrinkage factor to moisture content are considered in simulation. Both two and three dimensional configurations have been investigated. The model is solved numerically by a finite element method. A significant difference was observed between the results obtained for the two different configurations particularly in the intensity of the drying-induced stresses. Validation of results is achieved by comparing the numerical and experimental results. The effect of Young's modulus variation has been investigated. It was observed that drying-induced stresses are highly affected by Young's modulus variations. According to the results, none of the simulation methods, cannot be regarded as a safer method in crack prediction. The changes in Young's modulus, Has no effect on the location of maximum stress However, delays in the timing of it.
Received: 2015/06/4 | Accepted: 2015/08/4 | Published: 2015/09/21
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